We have talked about ‘memory’ all along the chapters of this book. We talked about memory
reading and writing, memory speed, main memory, secondary memory and virtual memory.
However, we are yet to examine the technical constituents of memory. is chapter discusses the
technology behind memory. Here, we will be talking only about main or primary memory – the
memory that the processor accesses directly, the speed of which plays an important role in any
computer system. is is semiconductor memory and a fi rst classifi cation of it is as RAM and
ROM. To understand the complete hierarchy of memory as a memory system, the concept of ...
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